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I'm currently working on a project that uses an RFID reader that reads RFID tags and uses a ASP.Net,C# program to store the tags data into an SQL database(Godaddy Server windows), but the problem here is that I need to connect RFID Reader (to read the data and store it to the database), so how can I do that?? Also, I may need to control the parallel port from the ASP.NET.
for at homw i want to test it .. so i m going to purchase the device and test it and present it ..
so place let me know on this how to start
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Ask the RFID vendor for details on integrating the reader to your ASP.NET app, e.g. documentation and demo code will be helpful.
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sandsip wrote: the problem here is that I need to connect RFID Reader (to read the data and store it to the database), so how can I do that?? Also, I may need to control the parallel port from the ASP.NET.
The problem is that you can't access local hardware using ASP.NET.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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I doubt that you can access the RFID re4ader directly from the ASP.Net code, which means you need to do some tweaking with ActiveX or Java Applets - The RFID reader vendor can tell you the details.
About accessing the Serial Port: Accessing anything locally from a webpage breaks most browser's security principles, thus it is hard to achieve. After some searching I found the following solution which allows you to access local serial ports on the client from the web page, but it is only promised to work in IE (other browsers may work, but not tested).
http://strokescribe.com/en/serial-port-internet-explorer.html[^]
Veni, vidi, caecus | Everything summarizes to Assembly code
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Marco Bertschi wrote: About accessing the Serial Port:
You're describing it as if they are two separate problems; one would need ActiveX to access a local resource. Both the port and the reader are local resources.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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yes - But I have no idea how the RFID scanner works in detail, that's why I only guarantee the correctness of my answer for the serial port issue.
Veni, vidi, caecus | Everything summarizes to Assembly code
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Why don't you create a Windows application that accesses the RFID reader and then posts the data to the ASP.NET site, instead of trying to do it directly from ASP.NET?
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Can't the RFID reader emulate a keyboard? At least, barcode reader can normally do so.
OK, if you want to send a command to it in order to initiate the reading, then that would not work so easily from a web page. But when it is OK that the user sets the cursor into the correct input field on the page and then presses a button on the hardware, that will work.
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Hi, we have a project with Kinect which is about obstacle detection and face recognition and we need to know if the obstacle is on the ground or not because we want to warn the user "Obstacle on the groud, step on it" if there's an obstacle like stairs, box etc. We work with Emgu CV and we use blob detection to find connected components on the depth map and we do it with opencv functions. Detecting the floor would also help us to say "the floor is not an obstacle" because you know if the camera is placed close to the ground it may detect the floor as an obstacle which is so unwanted situation.
So we need some suggestions, which methods can we use? Is there any function in Emgu CV(we didn't find any  ). We've found out that OpenNI has a getfloor function but we don't want to use that because project deadline is soon and maybe dealing with OpenNI when we are already using opencv might cause some problems and on the presentation maybe some problems may occur and our app would crash.
Any suggestions would be greatly appreciated.
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You already have an answer below. DO NOT repost the same question.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Hello ,
I have finished my client / server application when I did the setup file to another machine and when I try to open the report viewer it gave me these error messages I don't understand where is the probleme...
************** Texte de l'exception **************
System.Data.SqlClient.SqlException (0x80131904): Login failed. The login is from an untrusted domain and cannot be used with Windows authentication.
à System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
à System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
à System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
à System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
à System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject)
à System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout)
à System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
à System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
à System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
à System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
à System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)
à System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)
à System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)
à System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
à System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
à System.Data.SqlClient.SqlConnection.Open()
à System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
à System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior)
à System.Data.Common.DbDataAdapter.Fill(DataTable dataTable)
à GPvdesign.repdatasetTableAdapters.DataTable4TableAdapter.Fill(DataTable4DataTable dataTable, Decimal annee)
à GPvdesign.EtatConsommation.btnAfficher_Click(Object sender, EventArgs e)
à System.Windows.Forms.Control.OnClick(EventArgs e)
à DevComponents.DotNetBar.ButtonX.OnClick(EventArgs e)
à DevComponents.DotNetBar.ButtonX.OnMouseUp(MouseEventArgs e)
à System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
à System.Windows.Forms.Control.WndProc(Message& m)
à DevComponents.DotNetBar.PopupItemControl.WndProc(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
à System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Assemblys chargés **************
mscorlib
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1008 (RTMGDR.030319-1000)
CodeBase : file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
GPvdesign
Version de l'assembly : 1.0.0.0
Version Win32 : 1.0.0.0
CodeBase : file:///C:/Program%20Files/Microsoft/Setup2/GPvdesign.exe
----------------------------------------
System.Windows.Forms
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1002 built by: RTMGDR
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1001 built by: RTMGDR
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1001 built by: RTMGDR
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
DevComponents.DotNetBar2
Version de l'assembly : 10.0.0.3
Version Win32 : 10.0.0.3
CodeBase : file:///C:/Program%20Files/Microsoft/Setup2/DevComponents.DotNetBar2.DLL
----------------------------------------
System.Configuration
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1015 (RTMGDR.030319-1000)
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1015 built by: RTMGDR
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Accessibility
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
System.Windows.Forms.resources
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms.resources/v4.0_4.0.0.0_fr_b77a5c561934e089/System.Windows.Forms.resources.dll
----------------------------------------
Microsoft.ReportViewer.WinForms
Version de l'assembly : 10.0.0.0
Version Win32 : 10.0.40219.329
CodeBase : file:///C:/Windows/assembly/GAC_MSIL/Microsoft.ReportViewer.WinForms/10.0.0.0__b03f5f7f11d50a3a/Microsoft.ReportViewer.WinForms.dll
----------------------------------------
System.Data
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 (RTMRel.030319-0100)
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
System.Core
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Data.DataSetExtensions
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Data.DataSetExtensions/v4.0_4.0.0.0__b77a5c561934e089/System.Data.DataSetExtensions.dll
----------------------------------------
System.Numerics
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
Microsoft.ReportViewer.WinForms.resources
Version de l'assembly : 10.0.0.0
Version Win32 : 10.0.30319.1
CodeBase : file:///C:/Windows/assembly/GAC_MSIL/Microsoft.ReportViewer.WinForms.resources/10.0.0.0_fr_b03f5f7f11d50a3a/Microsoft.ReportViewer.WinForms.resources.dll
----------------------------------------
Microsoft.ReportViewer.Common
Version de l'assembly : 10.0.0.0
Version Win32 : 10.0.40219.329
CodeBase : file:///C:/Windows/assembly/GAC_MSIL/Microsoft.ReportViewer.Common/10.0.0.0__b03f5f7f11d50a3a/Microsoft.ReportViewer.Common.dll
----------------------------------------
mscorlib.resources
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 (RTMRel.030319-0100)
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/mscorlib.resources/v4.0_4.0.0.0_fr_b77a5c561934e089/mscorlib.resources.dll
----------------------------------------
System.Transactions
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 (RTMRel.030319-0100)
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
----------------------------------------
System.EnterpriseServices
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 (RTMRel.030319-0100)
CodeBase : file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.EnterpriseServices.dll
----------------------------------------
************** Débogage JIT **************
Pour activer le débogage juste-à-temps (JIT), le fichier de configuration pour cette
application ou cet ordinateur (machine.config) doit avoir la valeur
jitDebugging définie dans la section system.windows.forms.
L'application doit également être compilée avec le débogage
activé.
Par exemple :
<configuration>
<system.windows.forms jitdebugging="true">
Lorsque le débogage juste-à-temps est activé, les exceptions non gérées
seront envoyées au débogueur JIT inscrit sur l'ordinateur
plutôt que d'être gérées par cette boîte de dialogue.
Help me please 
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I think your connectionstring is telling the connection to use integrated security, but you are either supplying a username and password, or the user logged on to the new machine has no credentials set up in sql server. Either set integrated security to false in your connectionstring, and supply a valid username and password, or set up the credentials in sql server for the current user of the machine.
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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Make sure you never used a different connectionstring in your report than the one your application uses.
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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Ok i tell you what i have made in my application maybe we can solve the probleme
I created a configuration file with a name and I called the manager configuration class with name of the file configuration for button add and delete and modify etc... and I created a dataset with DataAdapter for repport viewer using assistance automatically i see the name of connection in file configuration and i clic next i do my query of sql
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I have changed my file configuration
like this
="1.0"="utf-8"
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="Gestionparc.Properties.Settings.GestionParcConnectionString"
connectionString="Data Source=PC; Initial Catalog=GestionParc; User Id=PC; Password=PC"
providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
but is still not working  
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Thank you very mush and i am sorry i haven't seen the answer
but
I have changed "Integrated security=true" to "Integrated security=false" and is the same probleme
this link i have seen it before posting this message 
Thank you !
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Hi to All,
This is with reference to my earlier post Here.
Short Description about project:
Tools uses: Ms.Visual Studio 2010 ultimate edition, Sql Server & Crystal report.
In earlier post, I was succeed to create N-tier application. Two classes Orders & OrderDetails were used to create new orders and add to database. Data Access Layer was used to establish Database connection and provide Sql base operations.
Now I am willing to add reporting feature to my project, for a simple Report I can use following steps:
1-Add Typed DataSet in Visual Studio.
2-Based on that DataSet, create Crystal Report using wizard.
3-Using DAL class, to fetch data, create Report object and and set RecordSource property to Report object.
This report was run successfully..
What I couldn't figure out is how I build Master/Detail report using same approach. How can I pass a DataSet which contains 2 DataTable Orders and OrderDetails to Report Object to display complete Order from Northwind Databse.
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Thanks for the links...Let me try to clear the problem a little more:
InvReport is the main report which contain a subreport. Which is based on DataSet1.xsd contains 2 Tables rptOrders and rptOrderdetails
DataSet ds = Ord.GetOrdersByID(int.Parse(this.txtOrdID.text.ToString()));
Above line call the GetOrdersByID method of Orders class which return Dataset consist of 2 tables Orders and OrderDetails.
Then on a Print Button click event of Invoice form create an instance of InvReport invR, and set SetDataSource of invR to ds.Tables[0]. Lastly I called CrystalReportViewer.Report source to invR.
The problem is how can I "tell" SubReport to use ds.Tables[1] as SetDataSource. So that it can pick OrderDetails relevant to Orders data.
I hope I didn't make my problem more confusing...
Thanks
Ahmed
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Thanks for the links, I will try to follow guidelines from both..
Appreciate your help.
regards
Ahmed
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